Mac Bone Ten ten.6 Snow Leopard was billed every bit primarily under-the-hood changes toBone X ten.5 Leopard, but it was much more significant than that.

OS X 10.6 Snow Leopard Snowfall Leopard was announced at the June 2008 Worldwide Programmer Briefing (WWDC) and released on August 28, 2009.

For the first time since Mac OS 8.5 was released in October 1998, Apple left behind an entire processor architecture. In 1998, it left behind Motorola 680×0 CPUs in favor of PowerPC (the commencement PPC Macs hawered been introduced in March 1994). With Bone X 10.6, Apple left behind PowerPC CPUs in favor of Intel (the starting time Intel Macs were introduced in January 2006).

Snow Leopard is not impacted by the "goto neglect" bug discovered in early 2014.

Big Changes with ten.half dozen

  • Snow Leopard is smaller than Leopard. By removing PowerPC and other unnecessary legacy lawmaking, Apple profoundly reduced the drive infinite needed by the operating organisation. It takes up about half as much space and thus volition install about twice as quickly as Leopard. That said, it makes more than demands of your hardware, so a Mac that runs Leopard comfortably with 1 GB of retention may feel very sluggish with Snow Leopard once you have more than than a couple apps running. We strongly recommend at least ii GB of retentiveness.
  • Grand Central Dispatch Grand Central Dispatch (GCD) means that the entire operating arrangement is designed to take advantage of multiple cores, whether on ane fleck or more than one. Process threads, which were handled by apps in the past, are now handled past the Os with new programs designed to utilize GCD. GCD will assign only equally many threads to an app as it currently needs, which makes for better use of resources.
  • 64-bit Operation Full 64-flake support ways programs will no longer be limited to four GB of RAM; the new maximum (16 exabytes) is meaningless, as no estimator in the forseeable future volition be able to hold billions of gigabytes of memory. Both the Bone and about all "system applications" (Finder, Safari, Mail service, iChat, iCal, etc.) are prepare for 64-scrap operation. And Snowfall Leopard is completely backwards-compatible with 32-bit apps. First generation Intel Macs designed effectually Intel Core Solo and Cadre Duo chips practice non support 64-bit functioning; all Macs since then do.
  • OpenCL OpenCL takes advantage of powerful modern graphic processing units (GPUs, a.k.a. "video cards") for more than than displaying video. All of that processing power will likewise be available for general purpose calculating.
  • QuickTime 10 introduced a new QuickTime role player and will take full reward of Core Sound, Core Video, and Core Blitheness. It can tape audio and video using your Mac'due south built-in microphone and webcam, and it can trim and consign for iPod, iPhone, Apple TV, YouTube, and MobileMe so you don't need to worry about which codec to use. QuickTime Ten supports HTTP alive streaming, which can adapt quality on the fly based on available network bandwidth. Of form it takes reward of GCD and 64-bit functioning.
  • Exchange Support is built correct into the OS. Mail, iCal, and Address Volume will work with Microsoft Exchange Server 2007. This may explain why Microsoft finally brought Outlook to the Mac with Office 2010. So long, Outlook.
  • The Finder has been completely rewritten to support 64-bit operation and take advantage of Grand Central Dispatch. This makes the Finder much more responsive.
  • For the first time, the Services menu is contextual: Yous volition only see the services available to the current app. (Until now, one-half or more of the Services might be grayed out because they don't work with your current programme.)
  • Exposé can piece of work in the Dock – click and hold an application icon and it will display that app's active documents in a grid. Apple claims this will make it "even easier to discover what y'all're looking for."
  • Time Machine backups are upwards to l% faster, according to Apple tree. This will be especially helpful for that showtime, long, full backup.
  • Macs shut downward and wake up more apace, and joining a WiFi network is also faster. This makes for more than energy efficient file sharing – your sleeping Mac uses less energy and wakes more than quickly to serve up files.
  • If y'all travel with you're Mac, you'll capeesh automatic time zone settings.
  • The 'Wake on Demand' feature may keep your Mac from staying comatose. The prepare is to reset the Energy Saver settings to their defaults, then put in your own settings.

Things Lost with 10.half dozen

  • There is no support for LocalTalk/AppleTalk in Snowfall Leopard. You lot'll need to find another manner to connect those old printers.
  • There is no longer whatever support for Palm OS devices in iSync. The Missing Sync (commercial software) does back up Palm devices.
  • Snow Leopard ignores creator codes when launching documents, somethingevery Mac OS prior to 10.6 has supported – it's been part of the Mac Os since the beginning.
  • There is no write support for HFS+ volumes (floppies, difficult drives, etc.)

Snowfall Leopard was replaced withBone X 10.7 Panthera leo on July xx, 2011 after just eleven months at the helm.

Final Supported Software

As Bone X has moved forward, more and more than software has dropped support for Snowfall Leopard.

From Apple

From Other Vendors

Minimum Hardware Requirements

  • Intel-based Mac
  • 1 GB of RAM, although ii GB is strongly recommended
  • 5 GB of available drive space
  • DVD-compatible optical bulldoze
  • 1000 Key Dispatch requires a dual-core CPU
  • 64-bit support requires a Core 2 or newer CPU
  • OpenCL is compatible with all current Macs. It is not compatible with:
    • iMacs released before March 2009
    • Mac mini released before March 2009
    • MacBook released before October 2008
    • MacBook Pro released earlier June 2007
    • original MacBook Air
    • Mac Pro released earlier January 2008 (Jan. 2008 and later models with unsupported video cards tin can used the discontinued GeForce 8800 upgrade kit – Apple role no. MB137Z/A – for OpenCL support. TheGeForce GT 120 retails for $149, is designed to work with the 2009 Mac Pro and has been reported to work with the 2008 model every bit well.)

Farther Reading

Downloadable Updates

Standalone Updates permit you update to a newer version of Mac Os 10 from your hard bulldoze instead of using Software Update, which requires an Net connection. Download the one(due south) yous demand and install them after mounting the disk image and launching the Installer program.

There are 2 types of Standalone Updates: Individual (or Delta) and Combo.

  • Individual Updates update ane version of Mac Bone X to the next version. For example, the Mac OS X 10.vi.4 Update updates Mac OS X ten.six.iii to version 10.6.4. Private Updates are too known every bit Delta Updates.
  • Combo Updates update the base version of a Mac Bone X release to the version specified in the Philharmonic Update, including all intermediate updates. For example, the Mac Bone X x.6.iv Combo Update updates any earlier version of Mac OS X 10.vi to Mac Bone X 10.6.4 using a unmarried installer, equally opposed to installing the private Mac Os X 10.half dozen.one, 10.6.2, ten.6.3, and 10.6.4 updates.

Standalone Updates are generally bachelor 24 to 48 hours afterward the Update is bachelor through Software Update.

If you burn a Standalone Update to CD, its disk image must be copied to your desktop or another location on your Mac OS X startup disk in order to be installed.

This page will exist updated every bit new Standalone Updates become bachelor.

Mac OS X 10.6.i

Mac Bone X 10.6.two

Mac Bone X 10.half-dozen.3

Mac OS X ten.6.4

Mac Os Ten 10.vi.5

Mac OS X 10.6.6

Version 10.six.six introduced the Mac App Store.

Mac OS X 10.half-dozen.7

Mac Os 10 ten.6.8

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